Test Procedures
APPLICATION:
Drinking, surface, and saline waters; domestic and industrial
waters and wastes.
RANGE:
0.0 – 22.0 ppm Bromine
MDL:
0.3 ppm
METHOD:
In buff ered sample bromine reacts with diethyl-p-phenylene
diamine (DPD) to produce a pink-red color in proportion to the
concentration of bromine present.
SAMPLE HANDLING &
PRESERVATION:
Bromine in aqueous solutions is not stable, and the bromine
content of samples or solutions, particularly weak solutions,
will rapidly decrease. Exposure to sunlight or agitation will
accelerate the reduction of bromine present in such solutions.
For best results start analysis immediately after sampling.
Samples to be analyzed for bromine cannot be preserved or
stored.
INTERFERENCES:
The only interfering substance likely to be encountered in water
is oxidized manganese. The extent of this interference can
be determined by treating a sample with sodium arsenite to
destroy the bromine present so that the degree of interference
can be estimated.
Iodine and chlorine can also interfere, but these are not
normally present unless they have been added as sanitizers.
BROMINE
, UDV
SMART Spectro 2 Test Procedures 05.02.16
www.
GlobalScientificSupply
.com
GLOBAL SCIENTIFIC SUPPLY
The Laboratory Supply Company!